%% You should probably cite rfc5754 instead of this I-D.
@techreport{ietf-smime-sha2-11,
    number =    {draft-ietf-smime-sha2-11},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-smime-sha2/11/},
    author =    {Sean Turner},
    title =     {{Using SHA2 Algorithms with Cryptographic Message Syntax}},
    pagetotal = 10,
    year =      2009,
    month =     jan,
    day =       20,
    abstract =  {This document describes the conventions for using the Secure Hash Algorithm (SHA) message digest algorithms (SHA-224, SHA-256, SHA-384, SHA-512) with the Cryptographic Message Syntax (CMS). It also describes the conventions for using these algorithms with the CMS and the Digital Signature Algorithm (DSA), Rivest Shamir Adleman (RSA), and Elliptic Curve DSA (ECDSA) signature algorithms. Further, it provides SMIMECapabilities attribute values for each algorithm. {[}STANDARDS-TRACK{]}},
}